The Pearce Grip Frame Insert For Gen4 Glock 21/41 is a simple, purpose-built accessory that plugs the open cavity at the bottom rear of the grip on Glock Gen4 models 20, 21, 40, and 41. Molded from high-impact polymer, it locks into place using the factory lanyard hole to create a clean, finished look while helping guide magazines smoothly into the mag well.

This compact insert is ideal for shooters who want to keep dust, dirt, and debris out of the grip cavity without adding bulk or changing the feel of their pistol. It works with or without Glock’s interchangeable backstraps, making it a practical upgrade for duty use, range sessions, training, or everyday carry. Pearce Grip is known for straightforward, reliable enhancements that integrate seamlessly with factory pistols.

Key Features:

• Manufacturer: Pearce Grip
• Model: PG-FI21G4 Frame Insert
• Material: High-impact polymer
• Color: Black
• Fit: Glock Gen4 20, 21, 40, 41
• Type: Grip frame insert for rear grip cavity
• Uses lanyard hole for secure retention
• Designed to keep dust and debris out of the grip
• Compatible with factory interchangeable backstraps